strandlund



April 29, 1924. R 15,828

.c. G. STRAN DLUND WHEELED PLOW Original Filed y 20, 1918 4 Sheets-Sheet l i k/r112. s

April 29 19'24.

C. G. STRANDLUND WHEELED PLOW Original Filed May 20, 1918 4 Sheets-Sheet 2 April 29 1924.

C. G. STRANDLUND WHEELED PLOW Original Filed May 20,

1918 4 Sheets-Sheet- Jinan/[Ur F! R f df uxudzuut fl ZAM LAW, Marnzgs Reiseued Apr. 29, 1924.

' UNITED STATES PATENT OFFICE.

CAB-L G. STRANDI/UIID, OFMOLINE, ILLINOIS, ASSIGNOR 'IO DEERE 6's COMPANY, OF

KOLINE, ILLINOIS, A CORPORATION OF ILLINOIS.

wnmnn rLow.

ori ami Io. 1,403,379, dated'l'uly a1, 1923, Serial No. 235,565, filed May 20, 1918. Application for reissue filed March 21, 1924: Serial No. 700,975.

To all'whom it may concern:

. Be it knownthat I, CARL G. STRANDLUND, a citizen of the United States, residing at Moline, in the county of Rock Island and 6 State of Illinois, have invented certain new and useful Improvements in Wheeled Plows, of which the following is a specification, reference being had therein to the accorlhlpanying drawing.

v y invention relates to wheeled plows in which one or more plow bodies are adjustably supported on wheels and capable of being raised or lowered for various depths of plowing, or raised entirely out of operation for transportation or otherpurposes.

The object of my invention is to provide a simple and effective mechanism by which the plow bodies can be automatically raised or lowered com ined with manually operable mechanism or regulating the plowing depth and leveling the plow, as will be fully disclosed in the llowing specification.

Referrin to the drawings in which similar letters indicate identical parts-- 95 Figure 1 is a side elevation of the wheeled plow embodying my invention and showing the plow bodies raised from the ound;

Figure 2 is a similar view wit the plow bodies lowered an in plowing position;

Figure 3 is a plan view;

Figure 4 is a section on the line 4-4 of Figure 3 looking from the center of the plow toward the land wheel and showing the latter and connected parts in the position assumed when the plow is raised;

Figure 5 is a similar view showing the land wheel and connected parts in the osition assumed when the plow'is lowere to operative position} Figure 6 isan'enlarged detail of the land wheel hub showin in dotted lines the parts of the clutch mec an'isxu contained therein;

Figure 7 is an enlarged detail section on the line 7-7 of Figure 6;'

' one of the operatin lever connections; and

" Figure 9 is an enfi rged sectional detail of a a part of the clutch mechanism. Y

The frame of the plow comprisesthe plow-beams 1 and 2 spaced apart and rigidly connected by braces 3 and 4 bolted. thereto, and a bar 5 bent preferably asish'own and rigidly bolted to the beam 2. Flow bodies a and b, constituting a plowing unit of a well which is sup orted a land whee 18.

Figure 8 is an enlarged detail plan of known type, are carried by the beams 1 and 2. Between its ends the bar '5 is spaced apart from the beam 2 and'forms a'support on which is journaled the land wheel axle and to which are secured parts of the lever mechanism for adjustin the land wheel as will be hereinafter descrlbed. The forward ends of the beams 1 and 2 are connected by a U-shaped member 6 between the arms of which and the beams 1 and 2 are secured clevises 7, to which is connected a draft bar 55 8, the same bolts securin the U-shaped member 6 and the clevises to the beams 1 and 2. To stiffen the construction at this point I' provide a brace 9 which is bolted to the centre of the U-shaped member 6 and to the beams 1 and 2.

A crank axle 10 is rockably journaled in bearings 11 and 12 secured to the beams 1 and 2 respectively, and extends forwardly and downwardly, and on the outer end thereof is mounted a furrowwheel 13. An axle 14 is rockably journaled in a bearing 15 on the bar 5 and extends across the plow, between thefront and rear planes of the plowing unit, to a bracket 16 on the beam 1 in 8 which the furrowward end is supported. The landward portion of the axle 14 is bent downwardly, and forwardly, and terminates in an inwardly extending s indle 17 on the hub-of t e'latter is contained the clutch mechanism by operation of which the traotion .power of the land wheel is utilized at will to raise the plow as will be stated.

Mounted on o posite sides of the rear of 9 the beam 2 are rame members 19. A lever 20 is pivotally' sup orted intermediate its ends' between the rame members 19, itslower end being pivoted to the bifurcated upper end of a sleeve 20, in which is journaled a spindle 21, preferably integral with a crank axle 22 on the laterally extending portion 23 of'which is mounted a rear furrow wheel 24. The sleeve 20" is pivotally connected, intermediate its length, to swing- 1 ing links 25 pivoted on opposite sides of the beam 2. Y g

Rigidly mounted on the axle His an upstanding arm 26, and ivotallysupported,

intermediate its length t ereon 1s a member 27 to the rear end. of which "a rod 28 is hooked; the rod 28 extendsrearwardly to slide through a sleeve 29; which is pivotally Within I work as well as when it is raise connected to the upper end of the lever 20. Adjustable stops on the rod 28, on o 0- site sides of'the sleeve 29, limit the sli ing movement of the rod 28. a A coil spring 31 is connected to the forward end of t e mem-/ ber 27 and extends to connection with an eye bolt 32 which is secured on a bracket 33 bolted to the beam 2. An upstanding arm 34 is rigidly mounted on the axle'10 and to the upper end thereof I pivotally secure a link 35, the upper end of which is pivotally bolted to a bar 36 extending rearwardly and pivotally secured to the arm 26. On the side of the bar 36, opposite the link 3 5,-is pivotally mounted a lever 37 the bolt which sccures the link 35 and the bar 36 together, servin as said levers pivot. The lever 37 is provi ed with the usual type of latch to enga e with notches in a segmental rack 38, rigidly bolted to the forward end of the bar 36. A rod 39 is connected to the lever 37 intermediate the len h of the latter and extends to a pivota connection with the arm 34.

Normally the land wheel 18 revolves freely upon the spindle 17, when the low is at from the round, but when I "desire to raisethe plow y the traction power of the land wheel 18 I employ a clutch mechanism to connect the land wheel 18 with certain parts attached to the plow. The clutch. I employ is contained ina casingart of which, 40, is referably integral wit the wheel hub 41. he second part, 42, of the casing is rotatably mounted on the axle portion 17 and fits within an annular enlargement of the art 40. The hub 41 is prov1ded with bushings 43 through which the axle portion 17 extends. Both ends of the axle portion 17 have sand caps 44 and 45, the former adapted to fit over the outer end of the hub 46 of the casing part 42 and bein held thereon by a pin or cotter-47 which also serves to retainthe casing)part 42 in place. a

n the inner face of the casing part '42,

.and diametrically opposite the center thereof, are bosses 48 and 49 through which extend loosely bolts 50 and 51. Do 52 are ri 'dly mounted on the outer en 5 of the 7 b0 ts 50 and 51 and project outwardly toward the periphery of the casing part 40. A lever 53 is rigidly mounted on the inner end oithe bolts50; a lever 54 is ri idly'secured, intermediate its ends, on tie inner end of the bolt 51, and has its lower terminaltion formed into-a hook 55 to en age with a coiled spring 56 the other end 0 which is secured to the casing part 42. A link 57 connects the upper termination of the lever 54 with the lever 53, andat theconnection between said link and the lever 54 I mount a roller 58 which is adapted to engage with notches 59 in the inner c rcumference of the casing I part 40.

"On the axle 14,, and extending toward the land wheel axis, is rigidly secured an arm 60 to'the lower end of which is pivotally secured a tripping lever 61 formed referably of two flat bars spaced apart by t e arm 60 which is pivoted between them. The tripping lever 61 extends below its ivotal con-' nection with the arm 60 and etween its lower ends is mounted a roller 62 which is adapted'to engage with one of the dogs 52, which present a curved surface for that purpose, and to retain the roller in contact therewith until removed therefrom by operation of the tripping lever 61. \Vhen one of the dogs 52 is actuated by the roller 62, as shown in Figure 6, the roller 58 is moved out of engagement with the notches 59 in the fixed clutch member or casing part 40, thereby releasing the casing art 42 therefrom and permitting thev lan wheel to rotate independently of said casing part 42. It will be seen, therefore, that the tripper comprising the tripping lever 61 and the roller 62 constitutes a holder by which the loose member or casing part 42 of the clutch 1s normally held against rotation, and that said casing art 42 constitutes an intermlttingly rotating power transmitting device which may be optionally rotated unidirectionally by the land wheel by actuatin the tripper to release the dog 52 with whic the roller 62 may be in engagement, and thereb permit the clutch members to be interlocke he upper portion of the bars forming the tripping lever 61 converge and are rigidly secured together and to the end thereof is connected a cable 63 leading to the tractor by which the plow is drawn. Above the pivotal connection of the arm 60 with the tri ping lever 61 I secure to the latter a col ed sprin 64 the other end of which is attached to tire upper portion of the arm 60.

Loosely supported on the axle 14 is a "hand lever 0 formed preferably of two parts 65 and 66. the former being bent forwardly and downwardly from its connection with the part 66. and to the forward end thereof I connect arod or brace 67 which is also connected to the part 66 intermediate the ends of thelatter. A segmental rack 68 is secured on the main frame. with 'the notches'of'whicha well known typeof latch on the lever is adapted to engage.

A' link 69 is pivotally connected to the lever c. intcrnmliate the ends of the part 65, and it extends downwardly to a stud 70 011 the casing part 42. the stud being adjacent theperiphery of the'casing part 42, and snbstantmlly equidistant from the dogs 52. and it pro'ects a sufiicient distance to permit the link 69 to swing clear when the easing part- 42 turns with the wheel in raising the plow.

As it is shown in Figure 1 the plow is raised from the ground, the clutch and conure 5, whereupon,

mesa

nected parts being in the position illustrated therein and in Figures 4, 6, and 7 To lower the plow I pull the cable 63, rocking the tripping lever 61 on its pivot on the arm 60, until the roller 62 is released from the dog 52 with which it is engaged. It then follows, by reason of the tension of the coiled spring 56, that the levers 53 and 54 are rocked to move the roller 58 into. engagement with one of the notches 59 in the casing part 40. When the roller 62 is disengaged from the dog on which it has been resting when the plow is raised, the casing part 42 is rotated by the weight of the plow, through the link 69, and the plow is lowered, the axle 14 being rocked to move the land wheel forwardly. When the axle-14 is rocked in lowering the plow the arm 26 is rocked rearwardly, and as the latter is connected to the lever 20 by the rod 28, the sleeve 20, in which the spindle 21,'carrying the rear furrow wheel 24 is journaled, is permitted to swing on the link,25 to lower the rear end of the plow; at the same time the axle 10 is rocked and the furrow wheel 13 thereon is moved forwardly by the bar 36, which is connected to the arm 26 and to the arm 34 on the axle 10. It is thus' apparent that the land wheel and both furrow wheels are actuated simultaneously to lower the plow. By the tension of the sprin 64 the lower end of the lever 61, on whic is mounted the roller 62, is always in position for the roller to enga e with one of the dogs 52; consequently w en the plow is down, the,revolution of the land wheel and the clutch casing brings the next dog 52 into en agement with the roller 62, thereby me 'n the levers 53 and 54 to disengage the rol er 58 from the notch 59 in which it has been resting.

To raise the plow I again pull the cable 63 and rock the tripping'lever 61 until the roller 62 is disengaged from the dog 52 with which it is in' contact, as shown in Figas previously explained, the roller 58 enters one of the notches in the casing part 40, locking the casing parts to ther so that they move as one with thelan wheel 18'. The traction power of the land wheel 18 is now utilized, through the link 69, to raise the plow, the link 69 being connected to the casing part 42 and to the hand lever c which is firmly held by its ratchet engagement with the segment rack 68. The rotation of the land wheel with the clutch arts engaged continues until the lower end of the link 69 has been carried by the vertical axis of'the land wheel, at which time the following dog is in contact withthe roller 62; the weight of the plow acting on the link 69, after the pivotal "connection/of the latter has passed the vertical plane of the axis of the land .relation one with the other,

ently secured to its wheel, is now exerted to force the dog 52 against the roller 62 which results in the roller 58 being withdrawn from engagement with the notch 59, in which it has been held while the plow is being raised.

While the land wheel 18 is now free to travel without its traction power being employed, the plow is held in its raised position by the tripping lever 61, the arm 60,

and the link 69, which together keep the casing part 42 from rotating about its axis.

By actuating the hand lever c from the position shown in Figure 4 to the limit of its downward play, t e plow can be raised somewhat .higher, the lever c fulcruming at its pivotal connection with the link 69.

The land wheel 18 is independently adjustable to regulate the depth of plowing by actuation of the hand lever c, for as the axle 14 is rocked and the land wheel raised the arm 26 is also rocked, and in a rearward direction, but the connection of the arm 26 to the rocking lever 20 is by the rod 28 which is slidably mounted in the sleeve 29, connected to the rocking lever 20, and slides freely therein, its limit of play being regulated by adjustment of the stops 30. In raising the plow the rear stop 30 contacts with the sleeve 29 at the desired. moment and the rear furrow wheelis moved forwardly by swinging the sleeve 20 to which the rocking lever 20 is connected.

The position of the furrow wheel 13 is changed when the hand lever 0 is actuated to regulate the depth of plowing, but the furrow wheel 13 is independentlyadjustable to level the plow, irrespective of the positions of the rear furrow wheel 24 and the land wheel 18, by actuation of the hand lever 37. When the latch of the hand lever 37 is engaged with the rack 38 the parts connecting the lever 37 with the arm 34 are in rigid but when the latch is released actuation of the lever 37 will rock the arm 34, by reason of the rod 39 connecting the lever 37 with the arm 34.

The axle 14, as previously described, has the spindle portion 17, on whichvtheland wheel 18 is mounted, bent substantially parallel to the main portion of the axle, by which construction I am enabled to bring the land wheel and the lever mechanism con nected therewith in close relation to the main frame of the plow, presenting in a simple, compact form the elements utilized in raising and loweringthe plow. By lo-- eating the supporting wheels as shown the weight of the plow is more readily, carried and the operation of raising and lowering it is consequently effected with greaterefliciency.

Arm 60, which supports the clutch tripper, is supplemental to the bail element of the land wheel support, and is independjournal element, the bail uppermost or their lowermost position'the two clutch elements can be locked together byactuating the tripper, comprising the parts 61, 62, and inasmuch as the arm can, as concerns the clutch, be regarded as an abutment carried by the frame, the driven clutch element is normally locked relatively to the latter. Consequently there is a firmly connected train of parts extending from the spindle to the frame, throu h the journal part of the axle, this train 0 garts being positioned in the vertical longitu inal planesof the clear space between the land wheel and the frame. Although the axes of the crank journal, of the pivotwhich joins arm 60 and lever 61, and ofthe roller 62 do not come fully to a straight line, the parts are held by the strong "spring 64 in a position such that they assist very large] in sustaining the spindle 17 of the land w eel firmly in position, supplementing the action of the link 69 in this respect, the bail element holding the landward side of said spindle.

What I claim is- "1. In a wheeled plow of the class described the combination of the frame, the plurality of plow bodies carried thereby, the front furrow wheel, the axle holding said wheel in front of the plow bodies when at work, the rear furrow wheel, the lifting mechanism thereon for the rear end of the frame, the land wheel, the swinging crank axle therefor havin a 'ournal element on an axis at the rear en 0 the plow frame and also a bail element arranged to hold the land wheel in the transverse lanes of the plow bodies and to push direct y upward on the journal element when the axle swingls, t a

power transmittin devices connecting two said axles-an the rear lifter, and an axle-swinging power transmitter operated by the traction of the land wheel, said fparts being arranged substantially as set 0 whereby power is transmitted from the land wheel to thrust upward directly against the rear end of the frame, and to simultaneously cause the front wheel to lift the front end thereof, and to-cause, simultaneously with the rising of said front end, avariable lift- I on saidarm for normally preventing the.

ing action on the rear wheel.

' j '2. In a wh c led plow of the class de:

scribed, the combination of the frame, a

plurality of\plow bodies carried thereby;-

the front furrow wheel, the axle holdin said wheel near the front end of the frame 7 during plowing operation, the rear .furrow wheel, the lifting mechanism thereon for the rear end of the frame ada tedito permit said rear end to rise and fall relatively to the rear wheel independently of the lifting mane ing power transmitter operated by the traction of the land wheel, said parts being arranged substantially as set forth wherebthe land wheel is adapted to directly li the low bodies relatively to the furrow whee s when in operation to follow an uneven ground surface, and also to transmit lifting power to the rear end of the. framefor simultaneously causing the lifting of the plow bodies relatively to the three wheels.

3. The combination with the beam frame,

and the land wheel, of the crank axle hav ing a journal element on the frame, as in' dle" element for' the land wheel'and a ail element on the landward side of the latter the plow bodies, the front furrow wheel,

wheel, said spindle element extending furv rowward through the wheel, an intermittingly rotating power transmitting device on the sums of the land wheel, and optionally rotated unidirectionally thereby, the vert1- cally arranged link pivotally connected to said intermittin ly rotatin transmitter and I to said frame, t e optiona ly actuated tripping device and holder adapted to prevent.

rotation of said transmitter, and the support for the tripping device supplemental to the said bail element and rigidly attached to the journal element and positioned on the furrow side of the land wheel.

4. The combination with the frame, the plow bodies, and the land wheel, of the wheel carrier comprising a journal element mounted on the frame, a bail element rigid with the journal element and ositioned on the landward side of the whee the arm on the furrowward side of the wheel supplemental to the bail element and rigid with the journal element, the rotary power transmitting device at the axis ofthe wheel and driven thereby intermittingly and unidirectionally, the link connecting the said power transmitter to the frame to move vertically therewith, the tripper and holder mounted transmitter from rotating and for releasing the same, said arm, tripper, and bail element 5. In a wheeled plow of the -class described, "the combination of a plowing unit composed of a plurality of plow-beams and bodies rigidlysecured together,'a front furrow wheel, a rocking crank axle for sa-i'df wheeljournalled on the frame,'a land wheel,

being arranged to form a bracing support for the wheel spindle.

driven clutc uaaas a crank axle journalled on the frame and extending to the landward side of the land wheel and then downward to form a crank on said side and bent to form a spindle extending furrowward through the land wheel, a clutch having a continuously going element connected to the land wheel and an intermittin ly rotated element on the furrow end of sai spindle, and a link having its lower end ivoted to said intermittingly iielement and permanently connected pivotally to the plow frame on the furrowward side of the land wheel, said link and said crank being arranged to sustain the frame directly on the land wheel and to brace both ends of the spindle.

6. In a wheeled plow of the class described, the combinationof aplowing unit composed of one or more plow beams and bodies rigidly secured together to form a frame, a front furrow wheel, a crank axle for said wheel rockably journaled on the frame, a land wheel, a rockable axle journaled on the frame andextended to a point landward of the land wheel, and having a crank on the landward side of said wheel and being bent to form a spindle extending furrowward through the land wheel, a clutch having a rotary element rigid with the land wheel and a radially expanded intermittently driven clutch element landward of the frame and furrowward of said wheel, and a vertical link in a vertical lane be tween the innermost plow beam an the land wheel, said link being pivoted to, and having its lower end movable with, the intermittentl driven part of the clutch, around the spin le axis, and adjustably conne ted at its upper end to the frame, said link and said crank bearing downward on the ends of the spindle on 0p osite sides of the wheel under the weight 0 the frame and the body.

CARL G. STRANDLUND. 

